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Construction method for disassembling of shield tunneling machine in narrow and small space

A narrow space and construction method technology, applied in the direction of earth drilling, mining equipment, underground transportation, etc., can solve the problem that the shield cannot be smoothly received by the shield tail in stages, and achieve the effect of dismantling and transportation

Active Publication Date: 2018-11-06
POWERCHINA RAILWAY CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In the case that one-time overall reception is not possible in the narrow space of the shield receiving shaft, the technical problems of shield receiving in stages and the final shield tail coming out of the tunnel cannot be successfully solved

Method used

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  • Construction method for disassembling of shield tunneling machine in narrow and small space
  • Construction method for disassembling of shield tunneling machine in narrow and small space
  • Construction method for disassembling of shield tunneling machine in narrow and small space

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Experimental program
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Effect test

Embodiment

[0074] Such as Figure 1-3 As shown, a construction method for dismantling a shield machine in a small space includes the following steps:

[0075] Step 1: In order to facilitate the disassembly of the shield body, the shield body is designed as an assembled shield body. The cutter head of the shield machine is welded with 4 side blocks and 1 middle block by welding; the front shield of the shield machine is welded The outer surface of the four blocks of the front shield is affixed, and the inner side is bolted between the front shield block and the front shield block with high-strength bolts; the middle shield of the shield machine uses welding to weld the four parts of the middle shield The outer surface of the block is fixed, and the inner side is bolted between the middle shield block and the middle shield block with high-strength bolts; the tail shield of the shield machine is fixed in blocks by welding;

[0076] Step 2: Tunneling, arrival, and reception of the shield ma...

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Abstract

The invention discloses a construction method for disassembling of a shield tunneling machine in a narrow and small space. The construction method comprises the following steps that 1, shield bodies of the shield tunneling machine are designed into assembly-type shield bodies; 2, the shield tunneling machine tunnels, arrives and receives; 3, a track beam is mounted, and an electric block is mounted on the track beam; and 4, the shield tunneling machine is disassembled. According to the construction method, ground hoisting holes do not need to be formed, after a shield cutterhead comes out of atunnel, the cutterhead is disassembled, and then a front shield and a middle shield are pushed sequentially through power of the shields to disassemble the front shield and the middle shield; and then a shield tail is pulled away from the tunnel through external arrangement of a jack to be disassembled, by pushing one of the shield bodies, one or two segments are spliced, and the disassembled components of the shield tunneling machine are transported in the mode of disassembling one of the shield bodies.

Description

technical field [0001] The invention belongs to the technical field of shield machine dismantling and construction, and in particular relates to a construction method for dismantling a shield machine in a narrow space. Background technique [0002] After the shield machine is used to excavate the tunnel, the more common dismantling method is to disassemble and lift the shield machine out through the preset hoisting hole. The above-mentioned construction method will affect the ground traffic and the surrounding environment, etc. The construction period of the main body of the station will increase the construction cost. In this case, many research institutions focus on the construction method of dismantling the shield machine in the tunnel, and formulate a reasonable shield tunneling machine based on the characteristics of the shield itself and the space conditions in the tunnel. The method of demolition and decomposition in the hole. [0003] For example, the patent documen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08E21F13/00
CPCE21D9/08E21F13/006
Inventor 毛宇飞赵春生薛清伟马健军
Owner POWERCHINA RAILWAY CONSTR
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